GoLang Ds\Sequence::rotate

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PHP Ds\Sequence::rotate

PHP original manual for Ds\Sequence::rotate [ show | php.net ]

Ds\Sequence::rotate

(PECL ds >= 1.0.0)

Ds\Sequence::rotate — Rotates the sequence by a given number of rotations

Description

abstract public void Ds\Sequence::rotate ( int $rotations )

Rotates the sequence by a given number of rotations, which is equivalent to successively calling $sequence->push($sequence->shift()) if the number of rotations is positive, or $sequence->unshift($sequence->pop()) if negative.

Parameters

rotations

The number of times the sequence should be rotated.

Return Values

No value is returned.. The sequence of the current instance will be rotated.

Examples

Example #1 Ds\Sequence::rotate() example

<?php
$sequence = new \Ds\Vector(["a", "b", "c", "d"]);

$sequence->rotate(1);  // "a" is shifted, then pushed.
print_r($sequence);

$sequence->rotate(2);  // "b" and "c" are both shifted, the pushed.
print_r($sequence);
?>

The above example will output something similar to:

(
    [0] => b
    [1] => c
    [2] => d
    [3] => a
)
Ds\Vector Object
(
    [0] => d
    [1] => a
    [2] => b
    [3] => c
)